Chapter 2: introduction, Drive description, Product features – ElmoMC AC Input Digital Servo Drives-Tuba User Manual
Page 11: Current control, Chapter 2, Introduction, Drive description 2.2. product features
Tuba Installation Guide
MAN-TUBIG (Ver. 1.502)
11
Chapter 2:
Introduction
This installation guide describes the Tuba servo drive and the steps for its wiring, installation
and powering up. Following these guidelines ensures maximum functionality of the drive and
the system to which it is connected.
2.1. Drive Description
The Tuba is a powerful servo drive that operates in digital current, velocity, position and
advanced position modes, in conjunction with a permanent-magnet synchronous brushless
motor or DC brush motor. The Tuba features flexible sinusoidal and trapezoidal commutation,
with vector control. The Tuba can operate as a stand-alone device or as part of a multi-axis
network in a distributed configuration.
The Tuba drive is set up and tuned using Elmo’s Composer software. This Windows-based
application enables users to quickly and simply configure the servo drive for optimal use with
their motor.
Power to the various models of Tuba is provided by a 115, 230, 3 x 230, 3 x 400 or 3x 460 VAC
source. A separate 24 VDC power supply serves as both the auxiliary supply and the backup
supply. This enables a safe and economical “power backup” feature that is essential for
positioning systems. An auxiliary 24 VDC power supply is required as the Tuba does not operate
without one.
Two variations of the Tuba are available: the Standard version and the Advanced version, which
features advanced positioning capabilities. Both versions operate with RS-232 and/or CAN
communication.
2.2. Product Features
2.2.1.
Current Control
•
Fully digital
•
Sinusoidal commutation with vector control or trapezoidal commutation with encoder
and/or digital Hall sensors
•
12-bit current loop resolution
•
Automatic gain scheduling, to compensate for variations in the DC bus power supply